Column Control DTX
Characterization of DDR4 Receiver Sensitivity Impact on Post-equalization Eye

Characterization of DDR4 Receiver Sensitivity Impact on Post-equalization Eye

White Papers

White Paper from DesignCon 2017

This white paper was first published at DesignCon in January, 2017. Reprinted with permission from DesignCon.

Abstract

The current DDR4 specification for the receiver (Rx) sensitivity defined at the Rx input does not account for equalization functionalities implemented in advanced Rx designs and may lead to over-design. In this paper we present a novel approach to characterize the Rx sensitivity impact on Rx post-equalization signal. We demonstrate that at the Rx output timing impairment is induced by common mode variation. The resulting jitter can be represented by a deterministic jitter model and incorporated in the statistical eye calculation. Timing margin and jitter in the post-equalization eye is measured at Vref to eliminate over-design.

 

×

*Indicates required field

*Required Field
Preferred method of communication? Change email?
Preferred method of communication?

By clicking the button, you are providing Keysight with your personal data. See the Declaração de privacidade de Keysight Para obter informações sobre como usamos esses dados.

Thank you.

A sales representative will contact you soon.

Column Control DTX